[PRCo] Re: NACHOD SIGNALS--TECHNICAL QUESTION

[Fred Schneider]

Nachod signals count cars in a block.  But for the real answer, send a letter to PTM addressed to the signal guru.  I can see him standing in front of me but I'm terrible with names.

rogertrolley.1 at juno.com wrote:

> I just reviewed an old accident (no location)in where a single track line had 2 miles between sidings. Car entered single track at location A and a car entered single track at location B at the same time. Car at location B changed ends and returned to dbl track thru signal trippers of NACHOD system. Question is ,did he trip signal to green on outbound side, even tho there still was a car in the single track block heading toward location B setting up a potential head-on collision?????   any takers??    cheers rogertrolley